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8 Questions returned
No. & Date AskedQuestion
# 708 :: 4/30/09
Question 708 has been Answered
Standardized scores offers a way of comparing norm-referenced scores. The z-score distribution is based on knowing how many standard deviations away f. . .

Z-Score, t-score, Percentile Rank

# 618 :: 2/8/09
Question 618 has been Answered
Individual scores of a placement examination are normally distributed with a mean of 84.2 and a standard deviation of 12.8. If a random sample of s. . .

Z-Score, t-score

# 524 :: 11/24/08
Question 524 has been Answered
Discuss how t test can be employed in hypothesis testing by the use of directional vs. nondirectional hypotheses. Discuss types of research where usi. . .

t-score, Z-Score, directional test, nondirectional test, 1-Sided Test

# 464 :: 10/7/08
Question 464 has been Answered
How do you know when to use a t-score instead of a z-score and vice versa?. . .

Z-Score, t-score

# 432 :: 9/30/08
Question 432 has been Answered
Assume that the population of heights of male college students is approximately normally distributed with mean m of 68 inches and standard deviation s. . .

TDIST, t-score

# 320 :: 8/6/08
Question 320 has been Answered
Individual scores of a placement examination are normally distributed with a mean of 84.2 and a standard deviation of 12.8. If the score of an indi. . .

t-score, TDIST

# 309 :: 8/4/08
Question 309 has been Answered
A cereal company claims that the mean weight of the cereal in its packets is 14 ounces. The weights in ounces of the cereal in a random sample of 8 of. . .

1-sample t-test, TDIST, t-score, t-statistic

# 301 :: 7/31/08
Question 301 has been Answered
What is the advantage of a t-score over a z-score?. . .

t-statistic, t-score